The vulnerability CVE-2025-52809 affects the National Weather Service Alerts software by John Russell. It arises from improper validation or control of filenames used in PHP include or require statements, which can be exploited for Local File Inclusion attacks. This can lead to unauthorized file access and potentially full system compromise. The affected versions are up to 1.3.5. The CVSS 3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability. No patch or official remediation guidance is currently provided, and the product is not a cloud service, so remediation depends on vendor updates.

Successful exploitation of this vulnerability could allow an attacker to include local files on the server, potentially exposing sensitive information or enabling further code execution. The CVSS score of 8.1 indicates high impact on confidentiality, integrity, and availability. There are no known exploits in the wild currently, but the vulnerability poses a significant risk if exploited.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or fix information is available, users should monitor John Russell's advisories for updates. Until a fix is released, consider restricting access to the affected application and limiting exposure to untrusted users to reduce risk.